Large-diameter small-turning tunnel TBM tunneling direction attitude regulation and control method

• Main Authors: LIU JIAYI, NING XIANGKE, HAO HONGDA, JIA LIANHUI, FENG HONGCHAO, ZHANG WEIDONG, YANG YALEI, DU LIJIE, LI QINGWEI
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MINING; SHAFTS; TUNNELS

The invention discloses a large-diameter small-turning tunnel TBM tunneling direction attitude regulation and control method, and belongs to the technical field of shield construction, and the method comprises the following steps: when the distance between a TBM and a turning radius entry point is greater than the position of the length of a TBM host, determining the position and attitude of the TBM in a curved tunnel; when the distance is equal to the position of the length of the TBM host, the TBM is adjusted to start tunneling in the inward bending direction of the turning section; when the distance between the cut-in point of the turning section and the TBM host machine is half of the length, the TBM is adjusted to keep the turning posture; when the tunnel just enters the turning section, the TBM construction mode and the tunneling direction are adjusted, so that the tunneling axis of the TBM is gradually fitted to the curve tunnel design axis; and in the turning tunneling process of the TBM, the tunnelin